Golang Weekly

How Go makes TypeScript's compiler 10x faster

Fri, 10 Jul 2026 00:00:00 +0000

#609 — July 10, 2026

Go Weekly

From TypeScript 7's Go Rewrite to Go as an Agentic Language — The 10x faster, Go-powered TypeScript 7.0 compiler was released this week, and former Go product lead Steve Francia leans on Microsoft's success with the port to argue that Go is the natural default for agentic development.

Steve Francia

📺 If you're more interested in the technicalities of the TypeScript porting project itself, Microsoft's Jake Bailey went deep in ▶️ this talk at GopherCon 2025.

Build a Real-Time Pipeline, Live with Our Engineers — You'll build it end-to-end: stream from an MQTT broker into Tiger Cloud, model it in hypertables, roll it up with continuous aggregates, and visualize it in Grafana. Free, July 22 at 12 PM ET. Can't make it? Register for the recording.

Tiger Data (Creators of TimescaleDB) sponsor

Proposal: go run -c 'code here' — Some languages (like Python or Ruby) let you run once-off arbitrary bits of code as a one-liner from the terminal. Could Go do the same? Ian Lance Taylor, Rob Pike, and others weighed in on the idea in this golang-nuts thread.

Dan Kegel et al.

IN BRIEF:

Go 1.27 Release Candidate 2 has been released.
Go 1.26.5 and 1.25.12 have been released including two security fixes.
The Go vulnerability database now marks golang.org/x/crypto/openpgp as unsafe, so govulncheck will start throwing warnings if you're using it.
gopls 0.23.0 is the latest release of Go's official language server with fleshed out Go 1.27 support and an sqlrowserr analyzer that catches missing sql.Rows.Err() checks.

PROPOSAL UPDATES:

maps.Same (formerly Identical) is coming to the standard library as a way to identify if two maps share the same underlying storage.
x/net/http2's standalone Transport and Server types are now going to be deprecated (proposal accepted two days ago).
sync/atomic may be gaining Max and Min operations (becoming a 'likely accept' two days ago).

mmap vs pread in a Real Go Storage Engine — A surprisingly thorough tour of how the VictoriaMetrics filesystem layer reads bytes: mmap when mincore says pages are resident, pread when a major page fault might block a Go thread.

Phuong Le

Go Interfaces, Reflection, And Binary Size — As we learnt in Jesús Espino's deep dive into reflect, reflection keeps extra type metadata around, but it also stops the linker stripping unused methods.

Chris Siebenmann

Architecting Durable Runtimes for AI Agents — How to build a 5-layer production stack for durable agents.

Orkes sponsor

📄 Line-Rate Packet Processing in Go with AF_XDP Andree Toonk

📄 Fixing a kubelet Memory Leak in Kubernetes 1.36 – The tracking down of a tiny Go lifecycle bug in Kubernetes kubelet. Mike Robbins

📄 Request Coalescing with x/sync/singleflight Redowan Delowar

📄 Benchmarking Go 1.27's encoding/json: The any Trap Reqfleet

🛠 Code & Tools

Goshot: Go Library and CLI to Turn Code into Screenshots — Turn the code of your choice into screenshots you can share or put in your READMEs. The styling and colors are highly customizable, you get syntax highlighting, and a choice of window chrome styles.

Chris Watson

💡 The Charm team offers a similar tool called Freeze.

✉️ go-mail 0.8: Comprehensive Email Sending Library — A feature-rich library for composing and sending mail with a strong focus on security and correctness, covering SSL/TLS, SMTP AUTH, address validation, and more. v0.8 adds native NTLMv2 SMTP authentication and DKIM support.

Winni Neessen

pREST 2.0: Serve a RESTful API From a Postgres Database — Turn a Postgres database into a RESTful API. Covers similar ground to PostgREST but built in Go rather than Haskell. v2.0 adds support for multiple databases.

pREST Team

radsort 1.0: A Stable LSD Radix Sort Implementation — From the prolific author of compress and cpuid comes a Go implementation of Radsort, a stable LSD radix sort with O(√n) space overhead.

Klaus Post

httpSMS: Turn an Android Phone into an SMS Gateway — A developer from Cameroon struggled to find an automated way to send and receive SMS messages API-style, so built this.

Ndole Studio

River 0.40 – A Postgres-based job processing system for Go. Contains a schema cleanup migration and adds JobStuckHandler as a hook for handling stuck jobs.
Excelize 2.11.0 – The library for reading and writing Excel spreadsheets celebrates its tenth anniversary with this release.
GoReleaser 2.17 – Can now build Windows .msix packages.
GoWebDAV 0.13 – Pure Go WebDAV client library.

📢 Elsewhere in the ecosystem

🤖 The creator of htmx, a commonly used set of frontend tools (particularly in the Go world), shows off a practical example of using Claude to investigate a bug report and reflects on how AI fits in with being an 'older developer'.
The Ruby community has created a great guide on how to start a Ruby meetup but the advice is general enough for it to be valuable to gophers too!
Devographics, best known for their State of JavaScript surveys, are back with a more general State of Devs survey to take.
🤖 The creator of the Bun JavaScript runtime, recently acquired by Anthropic, wrote up the story of rewriting Bun in Rust, a controversial AI-powered porting effort. It took ~$165k of Fable usage (at API rates).
A directory of how Postgres can replace other systems, whether that's cron, Kafka, Redis, Pinecone, MongoDB, or many others.
It's old, but this guide to what every number shown in htop means is genuinely educational and fascinating in equal measure.

Gin: 12 years, 88K stars, and zero broken APIs

Fri, 3 Jul 2026 00:00:00 +0000

#608 — July 3, 2026

Read the Web Version

Go Weekly

Building Gin: Simple Over Easy — Did you know Gin, the popular Go web framework, was built for a social network that never took off? Twelve years and 88K stars later, its creator reflects on choosing simplicity, radix tree routing (complete with a live diagram) and, aptly for a Go project, never breaking the API.

Manu Martínez-Almeida

Build Autonomous Software Factories in Go — AgentField is the Go-native AI backend for autonomous software — orchestrate agents as http.Handlers, build autonomous software factories, ship production-grade systems. Native Go SDK, open- and closed-source models. Open source.

Agentfield.ai sponsor

Understanding the Go Runtime: Profiling — Jesús is back with another of his deep dives, this time into how profiling works under the hood. If you’ve ever used pprof, you’ll learn exactly what’s going on inside Go to make it work, and what the five different types of profile measure.

Jesús Espino

IN BRIEF:

A proposal to allow Go doc examples with any signature is now a 'likely accept'. Examples with parameters or return values will appear in docs but won't be run by go test.
/r/golang discussed Go's conservative approach to language evolution. The consensus is that Go's simplicity is a key selling point.
A proposal to add Server.MaxHeaderValueCount to net/http (to mitigate attacks where large numbers of spurious HTTP headers are sent) has been accepted.
Go Report Card has closed after over a decade of scoring the quality of Go repos. We first linked to it in issue 50!

How 4 Bytes of Padding Make Array Clearing 49% Faster — Clearing a big Go array runs faster on Intel when it sits at an 8-byte aligned offset. Here’s why, plus a benchmark that also tries out Go 1.26’s experimental SIMD intrinsics.

Andrii Berezhynskyi

💡 If this makes you want an alignment linter, betteralign is a friendlier take on fieldalignment, though note both optimize struct size, which is what bit Andrii here.

📄 Zero-Copy in Go: sendfile, splice, and the Cost of io.Copy Assel Meher

📄 Vulnerability Reports Are Not Special Anymore Filippo Valsorda

🛠 Code & Tools

LeafWiki: A Self-Hosted Wiki in a Single Go Binary — No complex setup, just a single binary and a data directory with an SQLite database and Markdown files within. There’s a demo instance here.

perber

Compress 1.19.0: Optimized Compression Packages for Go — Covers a variety of compression standards like zstandard, S2, gzip, zlib, snappy, and zip, plus a fast parallel gzip implementation. Recent improvements include concurrent zstd stream encoding and an ARM64 zstd decoder.

Klaus Post

You Ship One Binary. Why Operate Two Databases? — TimescaleDB extends Postgres for analytics at scale. One database to run, not two. Get $1000 credit to start.

Tiger Data (Creators of TimescaleDB) sponsor

Mo: View Markdown .md Files in the Browser — Charm’s Glow is a good Markdown viewer on the terminal, but if you’re drowning in Markdown files you’d rather read in the browser, this is an elegant solution, and even includes things like syntax highlighting and Mermaid diagram rendering.

Ken’ichiro Oyama

Kratos 3.0: A Framework for Cloud-Native Microservices — A microservices-oriented framework built around HTTP and gRPC. GitHub repo.

Kratos

Fiber 3.4 – The popular Express-inspired web framework adds support for the new HTTP QUERY method, WithContext variants for session storage I/O, and more.
GopherJS 1.21 – Go to JavaScript transpiler. Now supports up to Go 1.21.13. You can try it out in this playground.
Noisia 0.3 – A 'harmful workload generator' to stress your Postgres setup.
Heimdall 8.0 – Enhanced HTTP client for high-scale usage.
Joker 1.9 – Small Clojure interpreter, linter and formatter.
go-msrpc 1.5 – MS-RPC/DCOM client library.

📢 Elsewhere in the ecosystem

Commit History is an online tool that creates a chart of a user's total GitHub commits over time. A neat addition to your profile README?
Over the past year, the VS Code team has been incrementally adopting the Go-powered TypeScript 7 compiler and getting some huge performance wins.
📊 Frank Denis benchmarked nine modern WebAssembly runtimes.
GitHub is continuing with efforts to make repo management less overwhelming with the ability to restrict issue creation to collaborators with write access.
Git 2.55 has been released with git history fixup for 'fixing up' earlier commits, faster git status on Linux, and more.
Gossamer is a new Rust-flavored language but that includes goroutines.

Comparing six Go cache designs

Fri, 26 Jun 2026 00:00:00 +0000

#607 — June 26, 2026

Read the Web Version

Go Weekly

Awesome Go: ~3000 Categorized Go Resources — Most curated ‘awesome’ collections go stale, but I’ve been impressed that Go’s gets almost-daily updates! It’s a perennially useful resource and worth revisiting in a week short on big Go news (are we all enjoying the World Cup?). You can contribute projects of your own too, if they meet the quality standards.

Awesome Go Team

Free Claude Code Course from Anthropic + Master.Dev — Coding is changing fast, and the engineers who thrive will be the ones who direct AI instead of guessing at it. Lydia Hallie from Anthropic teaches exactly that in our Claude Code course, now free for everyone.

Master.dev sponsor

📊 Shard Your Locks: Benchmarking 6 Go Cache Designs — A Google Cloud engineer benchmarked several approaches (sync.Mutex, sync.RWMutex, sharded locks, etc.) to find the fastest way to guard a concurrent in-memory cache. The numbers vary a lot with different types of load and usage, so benchmarking against your own workload is always best.

Misha Strebkov

IN BRIEF:

A 2024 proposal for Go to support process sandboxing on Linux using Landlock has now been accepted.
Robert Griesemer notes that in Go 1.27, if the environment has a removed GODEBUG setting with a non-default value, execution will panic during initialization as part of the broader policy of removing GODEBUG flags.
Hajime Hoshi, creator of Ebitengine, noticed that UUIDs generated with uuid.NewV7() always include 7000 when running in a browser under the js/wasm target. It's fun to see everyone work out why.
🔒 Socket reports on a Mini Shai-Hulud supply chain attack (as are plaguing the JS ecosystem lately) that has partly expanded into the Go ecosystem too.

On Excessive nil Pointer Checks — An argument that most defensive if .. != nil guards are a smell and that you should ‘fail fast and fail early’ at construction instead of accepting broken objects.

Konrad Reiche

How Channel Iteration Leaks Goroutines — Ranging over a channel that never closes leaks the goroutine forever. Redowan dissects a real cron scheduler bug and the fix.

Redowan Delowar

▶ Architecting Durable Runtimes for AI Agents — How to build a 5-layer production stack for durable agents.

Orkes sponsor

📄 Don't Run SQL Migrations in Tests: How I Sped Up the Test Suite By 2x – The trick: caching a ‘golden’ migrated database and cloning it per test. Philippe Gaultier

📄 I Taught a Bucket to Speak Git – Wiring together the pure-Go go-git implementation with Tigris’s object storage to build a stateless Git server. Xe Iaso (Tigris)

📄 Socket Activation for a Go HTTP Service on Linux with systemd Chris Korneck

🛠 Code & Tools

📈 asciigraph 0.10: ASCII Line Graph Rendering Library — A long standing library for rendering line graphs in ASCII text, including in color, all with no dependencies. v0.10 adds spectrum/heatmap gradient coloring, threshold coloring, and a flicker-free realtime mode.

Rohit Gupta

🌲 gtree covers similar ground if you want to render ASCII trees instead.

Delve 1.27: The Popular Go Debugging Tool — A minor bump for the popular debugger, though we haven’t mentioned it in over a year. Over that time, it’s seen some modernization and focused on supporting Go 1.27 better (e.g. generic methods and mapsplitgroup support).

Derek Parker

cockroachdb/errors 1.14.0 – Drop-in errors replacement that adds extra features, formatting options, and network portability of error objects.
TypeScript 7.0 Release Candidate – Microsoft's Go-powered, much-faster native port of the TypeScript compiler.
gocondense – A Go code formatter that condenses various multi-line constructs into single lines of code.
mpeg 0.6 – Pure Go MPEG 1 video and MP2 audio decoder (both old but unencumbered formats). Now with SIMD-accelerated audio decoding.
yarr (Yet Another RSS Reader) 2.7 – Go-powered web-based feed aggregator.
bbolt 1.5 – etcd's actively-maintained fork of the Bolt key/value store.

📰 Classifieds

🧩 A coding-agent harness has a boundary you can actually engineer — workspace, drift, verifiers, blast radius. The membrane model, in 4 properties. → Read the post.

Go 1.27 Release Candidate 1

Fri, 19 Jun 2026 00:00:00 +0000

#606 — June 19, 2026

Read the Web Version

Go Weekly

How Go Reflection Really Works — Reflection in a compiled, statically-typed language sounds impossible, but Go can print a struct’s field names, types, and tags at runtime. This look into the Go runtime reveals how: the compiler leaves notes behind for reflect to pick up.

Jesús Espino

Catch Go Bugs Before Your PRs Merge — When AI writes more Go, the code may compile, but a missed error, goroutine leak, or broken handler contract can still ship. Greptile reviews every PR with full repo context, catches real bugs, and lets you run the same review from your terminal.

Greptile sponsor

Go 1.27 Release Candidate 1 Released — “Run it in dev! Run it in prod! File bugs!” says the Go core team. The announcement itself is dry and perfunctory, but the draft release notes have been fleshed out a lot and the final release is expected in August (six months after Go 1.26).

The Go Team

💡 The experimental flag for generic methods has been removed, so you can now get playing with those, as well as the changes to encoding/json.

Finding Leaked Goroutines in Go 1.27 — In April, a new goroutine leak profile was accepted for Go 1.27. Here’s how it uses the GC to find provably-stuck goroutines, plus a comparison to goleak.

Redowan Delowar

▶ Building a pkg.go.dev TUI Explorer with Bubble Tea — A 24-minute video in which Alex demonstrates building a terminal user interface to explore Go modules via the new pkg.go.dev API.

Alex Pliutau

💡 Here's the pkg.go.dev API spec if you want to make something of your own.

How Does struct{} Take Zero Bytes in Go? — You may know that empty structs take up zero bytes, but there are a couple of edge cases that may be new to you.

Budimir Filipović

API for Google Search, Maps, Shopping, Amazon, and More — Unlock your business potential with comprehensive API solutions for Google Search, Maps, Shopping, Amazon, and beyond!

SerpApi sponsor

📄 Dependencies Should Be Fetched Directly from VCS – A Go developer who’s now working with Ruby reflects on Go’s better approach to dependency management. Martin Tournoij

📄 MaxBytes Middleware in Go: The Same Trap, Again Viktor Nikolaiev

🤖 Building Agents in Go Without a Framework Daniel Chalef

🛠 Code & Tools

goja: An ECMAScript/JavaScript Engine in Pure Go — An ECMAScript 5.1 (and ‘most of ES6’) JS implementation for adding scripting functionality to Go apps without pulling in native engines. Related, Sobek is Grafana’s goja fork (originally created to add ESM support more quickly) used in k6.

Dmitry Panov

🤖 gopls's Model Context Protocol (MCP) Server — Go’s official language server includes an experimental MCP server, so AI assistants can query semantic info about code (e.g. symbols, package APIs) rather than guessing from text. It’s a one-liner to add to Claude Code, say.

Official Go Documentation

Kage: Shadow a Website for Offline Viewing — A Go-powered tool that clones a web site and serves it for offline viewing. The novelty vs “Save As” is it handles JS-rendered sites by saving the DOM from a headless browser. GitHub repo.

Duc-Tam Nguyen

📰 Classifieds

⚙️ Middleware, but for AI agents. AgentField composes Claude Code, Codex & Gemini into one harness - Go SDK, 100+ agent recipes, use the language you already ship in. → Star & Deploy.

Echo 5.2 – A security release for the popular web framework.
go-toml 2.4 – The TOML file parser adds TOML 1.1 support.
MongoDB Go Driver 2.7

📢 Go Micro's Agentic Shift…

Go Micro is Becoming a Framework for Agentic Development — The popular distributed microservices framework, now sponsored by Anthropic, is “doubling down on agents”. Instead of composing mere microservices, Go Micro brings a similar mechanic (for models, memory, tools, and guardrails) to build agents instead. v6 just shipped.

Asim Aslam